Question

There are 8 balls in a bag of which 3 are white and identical and remaining are different. The no. of ways can 3 balls be selected from the bag.

• A. 20
• B. 24
• C. 26
• D. 28

Answer 1

Answer: (C)

26

Answer 2

$\frac{1}{15}$

of ways $5C_{3} +^{5}C_{2} +^{5}C_{1} +^{5}C_{0}$.

= 10 + 10 + 5 + 1 = 26.